Product Description
Dayton 3973071 oil pan drain plug for compatible Cummins ISC, ISL, ISL9, ISB, QSB, and 6C 8.3L diesel engines. Designed to seal the engine oil pan drain opening and allow engine oil removal during routine maintenance.
Features M18 x 1.5 metric threads, a steel construction, approximately 18 mm length, and a 10 mm internal square drive. The compatible replacement design includes an external rubber sealing surface to help prevent oil leakage.
Cross-references include Cummins 3946645, PAI 050566, and Dorman 090-173.
Verify engine model, serial number, oil pan configuration, thread dimensions, and original equipment part number before ordering. Confirm the sealing gasket is included before installation.
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